Introducing the sleep doctor: This man will change your life

We all know a lot about bedding these days. We discuss thread count with religious solemnity. We are connoisseurs of goose down. We order from pillow menus in smart hotels (I'll have the buckwheat, please'). But what gets forgotten is the mattress. 'Sleep, wellness and mental health. It's all super-aspirational,' says Jas Bagniewski. 'But mattresses are still icky. And they shouldn't be.'

Jas, 37, is the founder of Eve, the mattress company that offers a 100-night trail period and aims to rebrand the very concept of mattresses. 'All this beautiful stuff happens in bed,' says Jas. 'Sex, reading to your kids... But they're sold like loo paper in horrible showrooms.'

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Jas lives in Kensal Rise with his wife Maria and their two children: Harper, five and Leon, nearly two. He was born in Warsaw, the son of a dissident who fled with his family to London in 1984. Jas won an assisted place at Westminster and took a degree in history and politics and Manchester, followed by a master's in international relations from UCL. He then worked as a consultant for Accenture – 'super-boring' – before meeting the Samwer brothers, a German trio who have made billions from founding tech businesses subsequently bought by the likes of eBay. After eight years with them, he launched Eve in 2015 from an office above Camden Stables. The company sold 5,000 mattresses in its first year; last year it sold 25,000. Next year? 'It'll be way more.'

Their mattress USP? 'Our new-generation memory foam.' The traditional kind gets two complaints, says Jas. 'One, you overheat because it kind of wraps your body. Two, because it's quite passive, it's not great for sex – you sort of sink into it. Ours is cooler, bouncier.' And who doesn't want to be a bit bouncier at night?

This article was first published in the September 2017 issue of Tatler magazine